Valve.



L. W. EGGLESTON.

VALVE.

' APPLICATIOR FILED 1320.1. 1909. 963,21 5. Patented July 5, 1910.

2 EHEETB-SHEIZT 2.

Mf/VEJSfS.

Arid/VIVA?" 'j'l' I a x i a LEWIS WATSON EGGLESTON, OF CHICAGO, ILLINOIS.

VALVE.

Specification of Letters Patent.

Patented July 5, 1910.

Application filed December 1. 1909. Serial No. 530,767.

To nil 1117mm it may concern:

Be itknovvn that I, LEWIS Warsox Eoonns'rox, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Valves, of which the following, when taken in connection with the drawings accompanying and forming a part hereof, is a full and complete description, sultieientto enable those skilled in the art to which it pertains to un derstnnd, make, and use the same.

This invention relates to valves applied to steam upply pipes, and branches from said pipes, to control the flow of steam therethrough.

The object of this invention is to obtain a valve through which a determined quantity of steam at a given pressure will in a given time low therethrough.

A further object of this invention is to Obtain a valve of the kind named which may be adjusted to deliver a desired quantity of steam flowing therethrough.

A further object of the invention is to ohtain a valve provided with means to enable the operator or user to know the quantity of steam the device is set for, that is the quantity of steam which at a given pressure will, in a given time flow therothrough.

A further object of the invention is to obtain a device which when the means for opening the same are moved a given distance the quantity of steam lowing therelhrough in a given time will be correspondingly increased, and which can be set to determine the greatest possible quantity' of steam which will in a given time, at a given pressure, How therethrough.

A further object of the invention is to obtain a device in which the means for dctermining the quaulitv of steam llo\vin; therethrough will not be subject to wear, thus obviating any change by the use of the. device, of the :uljustnientthereof.

In the drawings referred to Figure l is a vertical sectional view of an angle valve provided with a rotatable and longilndinail movable valve stem embodying my invention, Fig. '3 is an elevation of an angle.-

\'al 'c prmidcd with :1. rotatable stein not longitudinally movable, and with the shell broken away to expose to view a modili ation of the construction embodying my invention. and Fig. 3 is a vertical section of an additional modification.

A reference letter applied to designate a given part i used to indicate such part throughout the several figures oi the drawings wherever the same appears.

Referring to Fig. l, A is the shell of the device. 1 the inlet, (Y the oiitlk't, l) is a valve Ftilt. ii a valve (oar-t ing with said valve seat D, 1' is a vahc stein provided with screw threads connected at its lower end to valve E, and at its upper end brovided with hand \vheel (i. ll is a Stuliing box to sleur l. I, i, are longitmlinally extendingreces cs in stem 1'. J is a Elltlllltllfl. on said stem F. K is a. post rigidly secured to shell A. L is an adjustable member provided with screw threads 1 at one end thereof and with the. head 1', at the other end thcreoh; The screw threads 1 tit into corresponding screw threads in post K, as indicated by broken lines in Fig. l. M is a lock nut. The head 1' may be raised or lowered by turning the member L in the proper direction and may be secured in an adjustable position by loch nut ll. X is a ball in head 1' and u is a sprin; arranged to yiehlinghv hold ball N in one of the recesses on stem l. Spring 14 is held in place by screw '11 As the hand Wheel (1: is turned in the couslructiou iliustraled in Fig. 1 theball X will cticl" in moving from one of the recesses l. l, to the next one lh re l', and at the same time the valve stem l. shoulder J on aid valve stem and valve 1) are raised, and when the shoulder .l is rai ed so as to come into contact with the under face. of head 1' the valve cannot be l'urihcr opened. The member I1 is tln-ret'orc adjusted so that when the. valve is opened to permit the flow therethrough of a sullicicnt quantity of steam in tlu s'apacit) ot' the radiator to which tln: valve is attached, the shoulder J will be raised into contact with the head 1', and the valve cannot be opened l'ai'lhcr.

is a cup providcd with an ap rture l at its lower end and with flange at its upper end. They cup (l is l' rccd into the passageway or the valve HHt so that the thing'- p thcicol' l't'.-t on the annular table forming the valve scat l). (,2 is u post .Hccurcd iii valve l: to extend downward into the aperture l and is of substanliallv the same di aiuetei'.

it. it. are rolccn lines used in Fig. l of the. drawings si upl v t iiidicalc tln' rise. of th valve l'i, with post Q :w the hand wheel (1 is turn d, so that thollu l N enters the ncvt Hill llo

adjacent recess l. in the device.

The cup (f), Fig. 1, forms a well so shaped that when the hand wheel (i is turned one step, as measured by one click of ball X in i'ta:t l the aperture 1 is opened to permit the law ot' a quantity of steaui'at a given pr ssure in a given time through said aperlare l, bctvvccii said cap and the post, and when said hand wheel is turned an additi nal. stop-an additional quantity of steam at a given pre sure can llow through said aperture. l. in said given time, and so on until the valve is entirely open. To accomplish this result the area of the plane on a line ll is increa ed at each turn of the hand whet-l as measured by a click.

The diameter of the valve seat D in Fig.

These lines do not appear 1 is great that, as tac valve E is raised there at all times capacity for a greater delivery of steam betv-xeen the. valve and the valve seat than can {low through the cap 0 betvvcen the depending post Q, and the cup, so that whatever steam lloivs through the aperture 1 it will flow without resistance, over the valve seat inte'a radiator or other steam consuming devices.

in the construction illustrated in Fig. 2 the flange on the upper end of cup 0' forms the valve seat, and part 0 is made of suitable diameter to lit tightly into the inlet to maintain said cup in place. The valve E 18 of no greater diameter than the portion f of the stem of said valve. f", f", are guides lilting loosely in grooves f, in portion f of lac stem, and said stem is movable longitudinally while held non-rotatably thereby. F is the portion ofthe. valve stem in the construction illustrated in Fig. 2, to which the hand wheel is attached. G is a hand wheel. The lower end of the part F of the. stem provided witlnexternal screw threads 1 which fit into the internal screw threads F" in port ion ofthe stem. As the hand wheel (1 is turned, in this construction a elicl; is heard, the same as in the construction illustrated in Fig. 1; so that the operator is made aware of the change made by him in the adjustment of' the valve. I, are radial grooves on the upper end of the cap H and N is a ball in the extension L of the hub of hand wheel G. 'n is a spring yicldingly holding the hall N in grooves l. A screw threaded hole extends through the depending post Q and into the aperture provided with the screw threads F and 1-1 is a screw in said screw threaded hole. To limit the longitudinal movement of the valve E, when the device is placed on a radiator having less capacity for the consumption of steam than has the device for the supply of steam screw R is turned so that the upper end thereof strikes the lower end of screw threaded stem F when the desired openings of the valve are reached. In this constructum, as the valve E is raised by the turning of the hand wheel (3' the portion of a turn which is measured and signaled by the "click" of ball N from one of the radial grooves 1 into the adjacent one, a measured quantity of steam is admitted in a given time at a given pressure to How through the annular space between the valve E and cup U, the same as in the construction illustrated in Fig. 1.

in the modification illustrated in Fig. 3, 15 is the inlet, 1)" the valve seat, E the valve, S is a cylindrical body open at its upper end. 0" is a cup shaped member open at both ends, the lower end being of suitable size to be forced over the valve E and to be held iirmly thereon. The outside surface of the cup 0 is of suitable shape so that as said valve and cup are raised the annular space between said cup and the cylindrical body S. at the upper edge of said body, determines the quantity of steam which may flow through the device. And said cup is so shaped that on the turn of the hand wheel through a measured angle a measured quantity of steam in a given will flow theretlirough. It". will be observed that in this construction the cup is movable with the valve and the measurement; of steam is obtained by the shape of the outside of said cup insteadof the shape of the inside, as in the construction illustrated in Figs. 1 and i2, and hence said cup may in this construction be filled or solid. The cup is by me preferably stamped from flat sheet metal in this manner the exactness required in the form of the en is easily maintained in the manufacture o a large number thereof.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. A casing provided with an inlet and an outlet, a valve seat and a valve arranged to eo-aet .with said seat and means to seat and tin-seat said valve, in combination with auxiliary means to vary the area of the inlet correspundiugly with the variation of longitudinal movement of said valve, and adjustable mcans within said casing for determining the maximum movement of said valve.

2. A easing provided with an inlet and an outlet, a valve seat, a valve arranged to coactwith said seal: and means to seat and unseat said valve, in combination with auxiliary means to vary the area ol said inlet corrc.-.p0ndingly' with the variation of longitudinal movement of said valve, means to.

indicate the movement given to said valve,

and adjustable means within said casing to determine the maximum movement of said valve.

3. The combination of a valve and valve seat, means to move the valve, :1 well and a plunger in said well, said plungericonnected to the valve to move longitudinally there- I planes Within said passage and at right with and arranged so that when said i angles to the axis of said body increase in plunger is moved given distances the anproportion to the distance of said areas from nular space between the nearest adjacent i the smaller end of said passage. and means 5 faces of said plunger and said well is ini to move the valve and change the relative 15 creased by given areas. position of the plunger and said body.

4. A valve seat, a valve arranged to co- LEYVIS WATSON EGGLESTON.

act therewith, a plunger, 9. body having a In the presence of-- substantially conical shaped passage there- CHARLES T URNER Bnowx,

10 through so that the areas of the circular; Conn A. AD/ms. 

